Thesis for a candidate`s degree by speciality 04.00.22 – geophysics. – Marine Hydrophysical Institution of National Academy of Science of Ukraine, Sevastopol, 1999.

The dissertation is devoted to a research of small scale dynamic processes in the ocean on basis of soundings data. The work develops a method of differential approach to spectral composition of ocean fine thermohaline structure, which depends from physical processes that cause fine structure. It is shown, that joint spectral analysis of temperature, salinity and density allows to separate statistical contributions from advection, internal waves and doubl diffusive convection in proper fine structure dispersions. The parameters of average wave elevations spectrum in oceanic thermohalocline and in hundredmetre layer of Black Sea waters situated beneath summery minimum temperatures are defined; the concrete characteristics of vertical fluxes effectuated by small scale nonlinear waves and double diffusion processes are calculated. The worked up methods can used in practice for any sufficiently detailed soundings data from different CTD-probes.